#include <bits/stdc++.h>
using namespace std;
#define int long long
const string bian="AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz";
string s;
signed main() {
    cin>>s;
    for(register int i=0;i<s.size();++i)
		for(register int j=0;j<52;++j)
			if(s[i]==bian[j]) {
				cout<<bian[(i+j+1)%52];
				break;
			}
	return 0;
}